CN102411881B - Full-color surface-mounted LED display screen and LED surface-mounted lamp module thereof - Google Patents

Abstract

The present invention provides an LED surface-mounted light display screen, which includes a screen body and an LED surface-mounted light module, wherein the LED surface-mounted light module includes an LED surface-mounted light and a kit for installing the LED surface-mounted light. The kit is provided with a reflector, and the upper end is covered with a semi-transparent and diffuse reflection cover. The reflector and the semi-transparent and diffuse reflection cover sandwich the surface-mounted LED surface-mounted lamp in the middle. Groove-shaped, the semi-transparent diffuse reflection cover plate is spaced from the LED chip at a certain distance. Due to the existence of the semi-transparent diffuse reflection cover, the surface texture can be significantly improved, especially when the plane is closed. In addition, by setting the reflector behind the LED surface mount lamp and the semi-permeable diffuse reflection cover in front of the LED surface mount lamp, each individual LED surface mount light source can be enlarged, so that the light of each LED surface mount lamp is connected into one piece, thereby Avoids moiré, improving visuals when taking pictures and/or recording videos.

Description

A surface-mounted full-color LED display and its LED surface-mounted lamp module

technical field

The invention relates to an LED surface-mounted lamp module and an LED display screen, in particular to an indoor surface-mounted full-color LED display screen and an LED surface-mounted lamp module used therefor.

Background technique

The existing indoor surface-mounted full-color LED display has the following defects: 1. The LED lights are directly exposed, and the visual effect is not good, especially when the screen is turned off; 2. Because there are certain intervals between the LED lights on the screen, the screen will When the brightness of each LED light is high and the brightness of each interval is low, that is, the brightness of the screen is uneven. More importantly, because of the number of pixels of the screen, if a camera or video recorder is aimed at the screen to take pictures or record videos, there will be confusion. Alfred stripes appear, seriously affecting the effect.

At present, with the wide application of full-color LED displays, such as the background of performances, remote video conferences, live broadcasts in different places, and even news broadcasts, etc., a large number of full-color LED displays are used as backgrounds. Therefore, to solve the aforementioned problems Defects are particularly necessary and significant.

Contents of the invention

In order to solve the defects in the prior art, the present invention provides an LED surface mount lamp module, which not only has good visual effects, but also avoids moiré fringes when a camera or video recorder is aimed at the screen to take pictures or record videos.

An LED surface-mount lamp module, including an LED surface-mount lamp and a kit for installing the LED surface-mount lamp, is characterized in that it has a plurality of LED surface-mount lamps, and the kit is provided with a reflector. The upper end of the kit is covered with a semi-transparent and diffuse reflection cover. The reflector and the semi-transparent and diffuse reflection cover sandwich the surface-mounted LED surface-mounted lamp in the middle. The reflector is in the shape of a groove with a certain slope. There is a certain distance between the transflective reflective cover plate and the LED surface mount lamp; the certain distance is 1 mm; the space between the certain distance is a spacer, and the reflector is divided into two parts from top to bottom, The slopes of the two parts are different, and the setting angles are also different. Each reflects an appropriate amount of light into the interval area to make the brightness of the entire LED display uniform. The reflector can make the light emitted by each adjacent LED surface mount lamp a suitable amount meets the surface of the transflective cover corresponding to the spacer;

The certain distance means that the light emitted by each adjacent LED surface mount lamp can be connected into a piece with uniform brightness after passing through the semi-transparent and diffuse reflection cover plate.

According to the embodiment, the following preferred technical solutions can also be adopted:

The certain slope means that the reflector can make the light emitted by each adjacent LED surface mount lamp meet on the surface of the emitting cover as much as possible. At the same time, the distance at a certain distance means that the light emitted by each adjacent LED surface mount lamp can be connected into a piece with uniform brightness after passing through the semi-transparent and diffuse reflection cover plate.

The present invention also provides a surface-mounted full-color LED display screen, including a screen body and LED surface-mounted lamp modules distributed on the surface of the screen body. The LED surface-mounted lamp module adopts any of the aforementioned LED surface-mounted lamp modules. one.

The transflective diffuse reflection cover plate is a white PC board.

The beneficial effect of the invention is that the surface texture of the screen can be obviously improved due to the existence of the semi-transparent and diffuse reflection cover, especially when the screen is closed. In addition, by setting the groove-shaped reflector behind the LED surface mount lamp and the semi-permeable diffuse reflection cover in front of the LED surface mount lamp, each individual LED surface mount light source can be enlarged, so that the light of each LED surface mount lamp can be connected into one Uniform sheet, which can effectively suppress the appearance of moiré fringes, greatly improving the visual effect when taking pictures and/or recording videos.

Description of drawings

Fig. 1 is a partial cutaway schematic diagram of an LED surface mount lamp module according to an embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the embodiments and with reference to the accompanying drawings.

As shown in Figure 1, the surface-mounted full-color LED display screen includes a screen body and LED surface-mounted lamp modules distributed on the surface of the screen body. The LED surface-mounted lamp module includes LED surface-mounted lamps 2 and a The bracket 1 of the LED surface-mounted lamp 2, the bracket 1 is similar to a container with an open top, and a reflector 3 is provided inside, the open top of the bracket 1 is covered with a semi-transparent diffuse reflection cover 4, and the reflector The cover 3 and the semi-transparent diffuse reflection cover 4 sandwich the LED surface mount lamp 2, the reflector 3 is in the shape of a groove with a certain slope, the semi-transparent diffuse reflection cover 4 and the LED surface mount lamp 2 at a certain distance. In the figure, between the dotted lines L1 and L2 is the space between two adjacent LED surface mount lamps.

The certain slope means that the reflector 3 can make the light emitted by each adjacent LED surface mount lamp 2 meet on the surface of the semi-transparent and diffuse reflective cover 4 corresponding to the space. The so-called appropriate amount means that the brightness of the surface of the final semi-transparent and diffuse reflection cover plate 4 is as uniform as possible. The specific slope value needs to be selected according to the distance between each LED surface mount lamp and the depth of the bracket 1 .

The certain distance means that the light emitted by each adjacent LED surface mount lamp 2 can be connected into a piece with as uniform a brightness as possible after passing through the semi-transparent and diffuse reflective cover plate 4 . The specific distance can be determined according to the thickness and optical characteristics of the transflective reflective cover 4 . For example, in some products that our company tried to produce, the interval is 1mm, and good results have been achieved.

The difference between another preferred embodiment and the previous embodiment is: the reflector 3 is divided into two parts from top to bottom, the slopes of the two parts are different, and the installation angles are also different, each reflecting an appropriate amount of light into the spacer , so that the brightness of the entire LED display is as uniform as possible.

Obviously, the reflector 3 can also be divided into more parts from top to bottom to obtain better effect (more uniform brightness).

It should be noted that the effect of uniform LED screen brightness can be achieved without installing the semi-transparent and diffuse reflection cover plate 4 in the above embodiments, because the light of each LED surface-mounted lamp 2 is directionally reflected through the reflector 3, which is equivalent to The light source point is enlarged, and the enlarged light source points will overlap with each other and become one piece. By installing the semi-transparent diffuse reflection cover plate 4, through its refraction effect, a better effect of uniform brightness can be obtained, and a better visual texture can be obtained.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, several substitutions or obvious modifications can be made without departing from the concept of the present invention, and the performance or application is the same, all should be considered as belonging to the protection scope of the present invention.

Claims (2)

1. A LED surface-mounted lamp module, comprising an LED surface-mounted lamp and a bracket for installing the LED surface-mounted lamp, characterized in that: there are a plurality of LED surface-mounted lamps, and a reflector is provided in the bracket, The upper end of the bracket is covered with a semi-transparent and diffuse reflection cover, the reflector and the semi-transparent and diffuse reflection cover sandwich the surface-mounted LED surface-mounted lamp, and the reflector is in the shape of a groove with a certain slope , the semi-transparent and diffuse reflective cover is separated from the LED surface mount lamp by a certain distance; the certain distance is 1mm; the reflector is divided into two parts from top to bottom, the slopes of the two parts are different, and the setting angle They are also different, each reflects an appropriate amount of light into the interval area, so that the brightness of the surface of the semi-transparent diffuse reflection cover plate is uniform, and the reflector can make the light emitted by each adjacent LED surface mount lamp in the corresponding interval. the surfaces of the transflective cover in the area meet; The certain distance means that the light emitted by each adjacent LED surface mount lamp can be connected into a piece with uniform brightness after passing through the semi-transparent diffuse reflection cover plate; The transflective diffuse reflection cover plate is a white PC board. 2. A surface-mounted full-color LED display screen, comprising a screen body and LED surface-mounted lamp modules distributed on the surface of the screen body, characterized in that: the LED surface-mounted lamp module is the LED surface-mounted lamp module in claim 1 Light module.